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What we plan to do together: - Add, subtract, multiply and divide two digit numbers - Rounding to the nearest 10 or 100 - Use units to measure What you need to focus on: - Decide on the maths you need to use to work out your answers

Mobile phones Level 1 FS Maths

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What we plan to do together:

- Add, subtract, multiply and divide two digit numbers

- Rounding to the nearest 10 or 100

- Use units to measure

What you need to focus on:

- Decide on the maths you need to use to work out your answers

Tim and Lara are shopping for new phones.

Tim is looking for a monthly contract phone.

Tim has found two phones he likes.

1 a) Which phone camera has more megapixels?

How many more?

b) How much more does Phone A weigh than Phone B?

2 a) The standby time on phone B is 48 hours.

How many days is this?

b) How many more hours of standby time has phone B than phone A?

c) What fraction of a day is this?

3. Phone A is 116mm long and 12mm deep.

a) What is the width? (in millimetres)

Phone B measures 109mm by 11mm by 60mm

b) Use a ruler to draw the lengths.

Label each carefully.

c) Which phone is larger: A or B?

Explain your answer

4. Lara has also found two phones she likes.a) Which phone is more expensive to buy

without insurance?

By how much?

b) How many minutes longer can you talk

on phone D than on phone C?

c) Lara thinks phone D has twice as

much memory as phone C.

Is she correct? Explain your answer.

d) Round the monthly insurance cost for

each phone to the nearest pound.

e) Estimate how much Lara would spend in a year on insurance for

phone C.

f) Suggest one reason why Lara should

take out insurance for phone C.

g) Suggest one reason why Lara

should not take out insurance for phone C.

What we plan to do together:

- Multiply and divide two digit numbers.

- Solve whole number problems.

What you should focus on:

- Show your working clearly and check

results

Tim wants to know how much he uses his phone so he can get the best monthly deal. He checks his account on the Internet

a) How many texts does Tim send in a week.

b) Estimate how many texts he sends

in a month.

c) Approximately how many hours of

call time does Tim use each month?

d) How many minutes is this?

e) How many hours does Tim spend on the internet in a week?

f) Estimate how many hours he spends on the internet in a month.

Tim sees two monthly packages he likes:

Explain one advantage to Tim of the Saver 25 package.

Explain one advantage to Tim of the Super Texter package.

Tim chooses the Super Texter package.

How much will this cost him for a year?

Lara is trying to work out approximately how much she spends on her phone each week.

a) She sends 50 texts a week, which cost 12p.Work out the total cost of her texts each week in pounds.

b) She makes 25 minutes of calls a day, charged at 15p a minute.Work out the cost of her calls each week in pounds.

c) Lara calls her grandparents in Spain once a week for 10minutes. International calls cost 25p a minute.

How much does she spend on calls to her grandparents each week?

d) Work out how much Lara spends altogether each week on texts, calls and international calls.

e) Lara buys credit on Saturdays. She can top up with £10, £20 or £50. What is the minimum amount she needs to top up to ensure she doesn’t run out of credit during the week?

f) How much credit does she have left at the end of a typical week?